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Finding the Fourth Proportional to 269,021.60, 403,532.40 and 72,029.60

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Solution

The fourth proportional to 269,021.60, 403,532.40 and 72,029.60 is: 108,044.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,021.60 : 403,532.40 = 72,029.60 : x
  2. Step 2: Convert to fraction form
    269,021.60/403,532.40 = 72,029.60/x
  3. Step 3: Cross multiply
    269,021.60x = 403,532.40 × 72,029.60
  4. Step 4: Simplify right side
    269,021.60x = 29,066,277,359.04
  5. Step 5: Solve for x
    x = 29,066,277,359.04/269,021.60
  6. Step 6: Final answer
    x = 108,044.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.